Carbureter



C. DE LUKACSEVICS. CARBURETER. APPLICATION FILED 050.29.1917.

Patented Apr. 13, 1920.

2 SHEETS-SHEET 1 wi imeoca aftmnu 0. DE LUKACSEVICS. CARBURETER.

APPLICATION FILED DEC-29, I917.

1,337,051 Patented Apr. 13, 11929.

2 SHEETS-SHEET 2-,

UNITE STATES PATENT OFFIQE.

4 CHARLES DE LUKACSEVICS, OF NEW YORK. N. Y.. ASSIGNGR T0 JULIUS WINTER, OF

NEW YORK, N. Y

CARBURETER.

' Specification of Letters Patent.

Eaten ted A pin 13, i920.

Application filed December 29, 1917. Serial No. 209,570.

To all who) it 'Ill (l l/ (07!(07Il-i I Be it known that 1, Cumulus on LUKAG- snvros, a citizen of the United States, residin my Letters Patent, No. 1,257,195, granted .February 19, 1918, wherein the construction is such that certain parts may be made of bakelite and so arranged or organized that bakelite surfaces alone are exposed to the fuel mixture, with resultant advantages as set forth in my saidpatent.

The present carbureter retains all the salient features of structure and advantage of the particular carbureter disclosed in my said patent; and the invention consists in certain detail features whose objects are to facilitate manufacture, to enable the substantial control of the quantity of hydrocarbon fuel delivered from the nozzle, and :0 provide for the correct proportioning of the constituents of the mixture by correlation of the operations of the respective air and fuel controlling means.

The features of structure, combination and relation which constitute the invention will be set forth in detail as the description proceeds.

An embodiment of the invention is illustrated in the accompanying drawings, wherein:

Figure 1 is-a vertical, central, sectional view of a carburcter in which the features of the invention are incorporated, the in terior of the carburetor being fully opened for the admission of the air and hydrocarbon fuel. i

Fig. 2 is a cross-sectional view on the line 22 of Fig. l but showing the parts in position to occlude the air and liquid fuel.

Fig. 3 is an enlarged detail sectional view of the tube which providesthe'fuel nozzle and certain parts appurtenant thereto.

Fig. 4 is a detail view of a part in 'association \vithsaid tube to provide the fuel jet orifices.

Similar characters of reference designate views.

of improvement within the valve guide 11.

lhe features of the invention will be best understood if their description be prefaced by a description of" those structural features which the carbureter disclosed herein has in commonwith the carburetor shown in my said patentm The casing of the carbureter is preferably made of bakclite and provides a carbureting chamber 1 to which fuelis delivered from a fuel nozzle 2 and air is delivered from an air supply pipe 3, the latter being preferably molded with the casing. The float feed chamber I is prefer-ab molded integrally with the balrclite bory part 39 of the carburetor casing. The casing includes an upper part which is provided with the attachment flange 3st and which, in the em bodinicnt shown, has a lateral extension 47 upon which said attachment iiange aranged.

The cylindrical body part 3%)- of the carburetcr casing incloses the operating parts which include the regulating valve 10, the valve element l9, and the air valve guide 11. The supply pipe (3 for the nozzle 2 leads from the float feed chamber 7 and is formed in the carburctcr base.

The float feed chamber is provided with a suitable float feed mechanism 8 and has a cover plate 7 of bakelite whicn is held closed, by a spring 4-0 secured to the carburetor casing.

The valve guide 11, which is prcferabiy of metal, depends internally from the upper end of the body 35), its upper edge portion preferably being clamped between the upper edge of said body and the adjacent edge of the upper member of the earbuwer casing. The regulating valve 1C- is pr "ably formed of baltelite and is of tubular or c \-'lindrical form, having a close sliding fit For the purpose of regulating the volume of the mixture delivered to the chamber 1 the va-lveltl cooperates at. its upper end with the valve element 19 which likewise preferably made of bakelite. For the purpose of regulatin the velocity of the air, provision is made or a. variable throatway l? in concentric external relationto the discharge end of the nozzle 2, and for the provision of the said. throatway the valve 10 has a Venturi-type cross-section.

The valve 10 also serves the function of a )nuin air control valve and accordingly has its lower portion interrupted to provide open 7 air SlQ/lfififi 97 which fume end are oonl rollerl ,w below said opening the valve with normally dosed base from. she inlet 3 can iiorinell" mterior the valve p! I openings whose eziieiem s z by the el aizion, at xv held. lih connection rilzh its e01 zulmitiecl by the idiot 3 the has incorporated therewith, its normally closed base, a 'zil've which. has av close sliding nozzle tube 2 and is normal y s o flanged ring o he! The spring &4; surrounds the w losers at its u 3e! enrl a 'amsla fingers carried by the valve .0. T i valve 4:5? normally closes the lower end or the valve 10 with which it is IL'EOVlllJlU ii unit. lifis object is to provide on I tiomil air s mply in the comp:

s when the 110111121 froquenl:

amount of air arh'ni'llei'l. to ine Jili'i L; the lowermosi yosxtion of the Valve 1G is in their utility in connect *11 w #31 he font: .r of structure and. ope onion above described.

The main elemem'; of ii fuel no? x. u ix'ighij tube 2, preferably of met: 3 i is anchored in the base of the -:.=.rlmroter (3min sock 2 :1

utilizerl. in of said casin lo" "(F Eiorwuh easing, having and, and which is together the parts purpose being en'i'oloyeri s 353. 'lll'ie shim 5; pen the upper member of the carburetor and carries shits ripper owl an loomed nut 37 while its eil, as at 38, for some (ll om tube 2. Upon the r $17. the parts m the rm'ouroter he sepureteiil, thereby enuhlii g; to the inclosorl w-:;

The shiiiomu-y vzi lve eii upon the stem 3:: and is i to a hushigj ir) whivi was;

.lzim on .i .1. elemiin, In] Sh mm: 1 reierzxhi r suitis aniihlv secured 3 i rhoreri 111 the noon Homo or he wirlmrotor casing. The vii: has in its lower port enhii'gez 3 11 l l n v p i ro u 51h ion :2v recess :h 1 i rho. re iml ope 1 l pro ects, sari its undo.

for the flow of fuel tie tube 2?, that ioh is screwed into a suitable number which crater; (l from the lower sided; portion to points ml- I3. of the tube 2*. The ably formed adjacent its lens; ma'ieriel. The disis absorbent material in the capillary efi'ect to condo: t

'l .il. duets oi to the discharge he mire 2-. 1 he discharge end of the tube 2 is praimirihiy ixafernally tapered and is in cooperai-ion with a. nozzle sleeve 53 which surrounds the sem 35 above said tube. The lower end of ihe sleeve is fashioned to conform-m the dim-barge end of the "who 2 and has a neuter; in l ")i the j t do ivory of fuel like sleeve 53 has and of number he of any i (A will have their number and proportions selected ivitl'i regard to the partivular engine with which the :arbureier is to he used. 53 is held in operative relation to the tube :2 by on expansion spring 55 rhich surrounds the stem 35 and is orwho 9:"- i'ormerl \Yi'ih any desired the of rodizri nozzle duets 5% which may ranged within the recess 60, hearing e'u its unpereml against it shoulder 55 formed iiiiernolly of the valve element 19,

or t ie regulation of the amount of fuel by means of the ducts 54, from e 53 there is provided a fuel regulat- H" thereon and on The sleeve 57 is partly housed memezai; 19 and time 55 in the recess of the valve i e poi'icion. snow SriillkQBSS onil which is connected to his valve 1; in sin-h manner that said regulating sleeve wili pm'ticipziie in all the movements of sai l valve. @For the connection of H12 who 1:) and the regulating slee e 57 il e lingers are preferably utilized and 2; shown, are provided with inwnmll' ii rooted t r 1 '1 s :38 which are iitts openi u l in Shirl regulating"sieve,

irient shown, the sleeve 57 a series of verimoul slots m l arrangement accords peotiye ilucls. in or- LEM the proper pro- "aiZS ofthe mixture engine speed the l whereby A, 1 31 o more Lube 2 above the normal discharge end. To provide me which adjoins the discharge is noxzlo/slee e 53 and esirsri WiiliLll or deguh. The ducts which orojeots some distance ments for controlling the admission of air, a fuel regulating sleeve surrounding said nozzle and mounted for up and down sliding movement, said sleeve being constructed whereby, when raised, it decreases the amount of fuel delivered by the nozzle and, when lowered, it increases the amount of fuel so delivered, connections between said regulating valve and said regulating sleeve whereby the latter participates in the movements of the former, a carbureting chamber. above said nozzle and a stationary valve element between said carbureting chamber and said nozzle with which the valve cooperates at its upper end, said valve element having a central recess mto which said regulating sleeve projects.

3. In a carbureter, in combination, a casing including a body, part and an upper member, an upright nozzle tubemounted within the body part, a stem pendent from the npper member and'threaded within the nozzle tube, said stem having rooves in its threaded portion whereby the uel may pass to the upper end of the nozzle tube, and a nozzle sleeve fitted upon said stem and cooperating with the upper end of said nozzle tube, said nozzle sleeve having fuel discharge ducts.

4i. In a carburetor, in combination, a casing having an air inlet, an upright nozzle tube mounted within said casing, a tubular regulating valve 'surroun ing said nozzle, a carbureting chamber above said nozzle, a stationary valve element between said carbureting chamber and said nozzle with which the valve cohperates at its upper end, said valve element having a recess and a nozzle sleeve mounted within said recess for 306 oration with said nozzle tube, said nozz e sleeve having fuel discharge ducts.

5. In a carburetor, in combination, a casing having abody part and an upper part, an upright nozzle tube mounted in the body part, a stem pendent from the upper part and threaded in said nozzle tub a nozzle sleeve mounted upon said stem for cooperation with the nozzle tubefaspring pressing said sleeve against the upper end of the nozzle tube, a tubular regulating valve-sun rounding the nozzle tube, a permitting:

chamber located above the nozzle time, and. a stationary valve element between said earbureting chamber and the nozzle tube with which the valve cooperates at-its upper end, said valve element havin a recess in which the nozzle sleeve and its spring are arranged. D

6. In a carburetor, in combination, a easing having an air inlet,van upright nozzle located centrally within said casing and discharging above said air inlet, said nozzle having discharge ducts, a tubular regulat ing valve surrounding said nozzle and mounted for up and down sliding movement, said tubular regulating valve having a normally closed base, a compensating air valve which forms a part of the normally closed base of the regulating valve, a fuel regulating sleeve surrounding the nozzle and mounted for'up and down sliding movement, said sleeve bein constructed to regulate the amount of his delivered by the nozzle, a plurality of arms projecting from the regulating valve and fitted to the regulating sleeve, thereby to'cause said sleeve to participate in the movements of the valve. and a spring bearing between said arms and the compensating valve to hold the latter normally closed.

7. In a carbureter, in combination, a casing having an air inlet, an upright nozzle tube located centrally within said casing and discharging above said air inlet, a tubular regulating valve surroundin said nozzle and mounted for up and down s iding move ment, and means for moving said valve, comprising a rock-shaft fitted in the lower part of said casing, a collar slidably fitted ,on said nozzle tube and connected to said "regulating valve, a pair of arms projecting from said rock-shaft and having grooves in their confronting faces, and pins carried by said collar and working in the grooves of said arms.

- 8. In a carbureter, in combination, a casing having an air inlet, a upright nozzle tube located centrally wit iin said casing and discharging above said air inlet, a tubular regulating valve surroundin said nozzle tube and mounted for up an down sliding movement, and means for moving said valve, comprising a rock-shaft fitted in the lower part of said casing, a collar slidably fitted on said nozzle tube and corn nected to said re ulating valve, a pairof a-rms projecting having pins carried by said collar the grooves of said arms, and a sleeve car roni said rockshaft and: grooves in their confronting faces,v

andworkmg 1n 7 r ing said arms and fitted on said rorle];v s aft, said. sleeve andsaid roobehaft having inter-matching corrugat ons whereby Witnesses:'

Jossrn B. Banners, SAM B. SMITH,

Said sleeve may be positioned on said 'roclt- 

